Paid for Pro, app stopped working – Vidstitch Frames for Instagram Review

I paid to upgrade to Pro so I could have all the collage and text options. Since I paid for the upgrade I have not been able to access the app on my iPhone or iPad at all. It says it is opening the application and then it closes and goes back to my home screen. I have not been able to use the limited or pro version of Vidstitch since I paid for the upgrade and when I attempted to get help from App support that page would not load either.
Review by believebyklw on Vidstitch Frames for Instagram.